Search:

These later model Pentastar "PUG" engines are an absolute PITA to tune on boost compared to the earlier gen1 Pentastars in the JK's Chargers and Challengers etc.
I'm currently tuning a few Maggy...

The modeled airflow tables should not alter the VE or any fuel trims because these systems are still based on the SD model and the ideal gas law to estimate the actual airflow entering the cylinders....

Do you have any corresponding datalogs including wideband o2 sensor data so that we can assess how the vehicle seems to be running?

I've been using this Mopar 3 Bar MAP sensor kit from Dave on quit e a few of my boosted Pentastar setups. https://www.needlesstorque.com/shop/p/vjvc4dw81tqasml5rtheg9o2bdt21g
Have had quite a few...

Only if it's the later model Pentastar "PUG" with VVL, such as in the JL's, Gladiators, GC's and a couple of other vehicles.

I was just providing a simple example IF the stock injectors were 600cc/min or half the flow of the FIC1200's (assuming they are rated at 1200cc/min @ 58psi). Thus, the correction factor should be...

Multiplying the startup base table by the inverse of the change in injector flow will get you a good starting point (assuming the rest of the injector data has been entered correctly).
Eg if your...

Where abouts in Oz are you located mate?

Except its a JK Wrangler which would have a NAG1 5 speed trans.

Only 2 credits required to tune the engine and trans on these.

Thats it!

Correct.
E85 is obviously an extreme case to E0 (0.0688 vs 0.1035) but I was just merely pointing out that the FA stoich parameter is used as the fuel mass conversion factor. Thus, it is used all...

The PCM still needs to calculate the required mass of fuel to inject for the measured/calculated airmass to target a commanded EQ. To tie this all together it needs to know the stoichiometric AF or...

I corrected the injector characteristics for you based on the injector datasheet provided.
The rest of the tune obviously still needs a heap of work, but hopefully this should knock back them crazy...

Which injectors are these and do you have the supplied data to post up so we can check.
The LTFTs+STFTs are absolutely maxed out at -63.3% in your latest log at idle

And a Baro of 140kPA!
Im surprised it didnt turn them slugs into liquid aluminum :eek:

Virtually all modern PCMs only utilize only 1 or 2 knock sensors and then use a crank angle windowing function through their DSPs to monitor individual cylinder knock.

All the GPEC2A's I've come...

ECM 37855 and 37856?

From that datalog it looks like you could well be hitting the [ECM] 13530 - ETC Pedal WOT voltage threshold which is currently set to around 2.6V.
Once you exceed this threshold, the ETC system...

The Factors in his current tune seem fine. The VE ECT factor only changes by a few % around the operating temp (even if running a low temp stat). The IAT factors seem to closely follow the ideal gas...

Upload a data log mate so we can actually have a bit of a look at what's actually going on.

Are you sure you fuel pressure is keeping up and is stable up top?
What lambda it hitting up top? Got a datalog?

Nothing horrible really stands out in your tune. Injector characteristic look ok. ...

I'm glad someone actually gets it. It's a data resolution thing. Your plot shows it very clearly.
I have entered the "backward" data before and then clicked commit when the warning screen showed up....

Nonlinear region = nonlinear flow characteristics. Doing a "180" is far from a linear flow characteristic....

Anyways FIC's data is not "screwed up" because they "have an increase in pulse width...

I believe you also need to reinitialize the ABS module after changing the gear ratios and reinitializing the TCM

Never heard of the non-linear flow region at low IPWs?